Motor-vehicle circuit-lock



F. ECOLES.

IvIoToII VEHICLE CIRCUIT LOCK.

APPLICATION FILED .IULY 3l I920.

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PATENT OFFICE.

FRANK menus, or REDCAR, ENGLAND..

MOTOR-VEHICLE CIRCUIT-LOCK.

Application led .Tuly 3l,

To all whom t may concern:

Be it known that I, FRANK EooLns, a subject of the King of Great Britain and Ireland, residing at Redcar, in the county of York, England, have invented new and useful Motor-Vehicle Circuit-Locks, of which the following is a specification.

In order to prevent the theft of motor cars, motor cycles and similar motor driven vehicles, when left unattended, it has hitherto been proposed to employ a combination lock partially housed in a casing with a hinged cover, the said lock operating a sliding bar provided with U shaped resilient contacts adapted to be engaged with or disengaged from .a pair of parallelly placed stationary contacts connected with the ignition system. My invention consists in an improved means whereby the connection between the accumulator and the sparking plug or plugs, and/ or between the magneto and the sparking plug` or plugs, can be broken instantly by a person leaving the vehicle and can be quickly remade on the return, which means comprise a casing in opposite sides of which are secured socket terminals of the wiring to and from the parts named, and with one of which sockets a sliding plug is adapted to be continuously engaged, but with the other socket, to be engaged or withdrawn by the action of a key operated lock having a connection with the said sliding plug.

My invention will be better understood on reference to the accompanying sheet of drawings, in which Figure l, is a sectional elevation of my im proved device showing a sliding plug op erated by lock mechanism.

Fig. 2, is a sectional end elevation, and

Fig. 3, is a plan of same.

The same letters refer to similar parts throughout the several views.

According to my invention I mount a sliding plug, d4, in guides e, el, the said plug be- Specification of Letters Patent. Patented DBC. '7, 1920.

1920. Serial N0. 400,505.

ing adapted to be engaged with and disengaged from a metal socket f1, while it slides within the metal socket f. The sockets f, and f1, are connected to the free ends of the cables a, and Z2, and insulating bushings g, g1, are

. interposed between the said sockets and the metal casing 7L. On the sliding plug d4, I secure an insulated lever z', which depends into a lock case j, of any known construction and is adapted to be moved with the bolt of the lock as the latter is turned by a key inf serted through the opening h1, ing L.

From the foregoing it will be understood that with a car iitted with my improved device, the driver on leaving the car unattended can withdraw the sliding plug by means of a key, thus rendering it quite impossible for the car to be started by any unauthorized person, since the engine could not be operated by reason of the electrical connections being temporarily broken.

On the return of the driver the re-instaten in the cas- `ment of the plug occupies but a very brief time, when the car will be ready for starting so far as the electrical firing of the charge is concerned.

y Having now described my invention what l claim and desire to secure by Letters Patent is z* In a circuit lock, a casing having oppositely disposed openings, insulating bushings fitted within said openings, alined tubular sockets carried on said bushings and adapted to receive circuit connections, a conducting bar having. one end slidably engaged in one of said sockets' and movable to be engaged in and withdrawn from the other socket, ,guide means to support said conducting bar between said sockets, and means for moving said bar'.

In testimony whereof I have signed my name to this specification.

FRANK ECOLES. 

